/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.seata.server.storage.redis.store;

import org.apache.seata.common.ConfigurationKeys;
import org.apache.seata.config.Configuration;
import org.apache.seata.config.ConfigurationFactory;

import static org.apache.seata.common.Constants.STORE_REDIS_TYPE_PIPELINE;

/**
 */
public class RedisTransactionStoreManagerFactory {

	protected static final Configuration CONFIG = ConfigurationFactory.getInstance();

	private static volatile RedisTransactionStoreManager instance;

	/**
	 * Get the instance.
	 */
	public static RedisTransactionStoreManager getInstance() {
		if (instance == null) {
			synchronized (RedisTransactionStoreManagerFactory.class) {
				if (instance == null) {
					String storeRedisType = CONFIG.getConfig(ConfigurationKeys.STORE_REDIS_TYPE,
							STORE_REDIS_TYPE_PIPELINE);
					instance = STORE_REDIS_TYPE_PIPELINE.equals(storeRedisType) ? new RedisTransactionStoreManager()
							: new RedisLuaTransactionStoreManager();
				}
			}
		}
		return instance;
	}

}
